In this gender-fluid times I foresee something like that would cause quite a bit of controversy. I was surprised to read they used "self-reported sex" for trai

In this gender-fluid times I foresee something like that would cause quite a bit of controversy. I was surprised to read they used "self-reported sex" for training, not sure how you could predict a biological trait from biological features using a self-reported truth as training label. It works because most of the time genetic sex and self-reported coincide but they list at least one testing error where the model predicted genetic sex and it was different from self-reported one.